Door-lock.



L. F. BONALY.

000B LocK.

APPLICATION FILED NOV. 20 1913.

1,164,982. Patented Dee.21,1915.

FE1- gli s 'rarnr 'ofession LoUIS xr. :BONALSL orfKIcKaroo rownsnrnitnavnnwonrncoUNTY, KANSAS,

' ASSIGNOR or onnnatr .To aannemen M. PLAIICK, or Kansas CITY, Mrs- SoURI.'

incassa.k

Application aiesvnmrembrl an, isis.

Be it known that I, LOUIS F. BorIALYLa! citizen of the United States, residing in' Kickapoo township, in the county of 4Leavenworth and State of Kansas, have invented certain [new and useful mprovements in Door-Locks, of Which the "following is a' specification. l 1

Thisinvention relates to door locks, and my object is to produce'a simplelock construction Which it Will be diilicult to pick,

Vand also one' in yWhich. the locking mechanismWill act with accuracyand certainty.

- It is a further ob]ect to providey a tumbler u l1 i arrangement not hkelytofget out 0I order or be accidentally operated to lock the latch bar incase of slamming of the door. l y lith these objects in view, my invention comprises certain novel' and peculiar tea.- tures of construction as hereinafter described and particularly pointed outinthe appended claims; and-to atord'a clear and complete understanding of the same, reference .Will be had to the accompanying drawing, forming a part of this specification, and in whichv 'v .Figure 1 is a side vievv of my improved lock With theface plate removed to disclose the interior, and also With a portion of the tumbler latch broken away, the tumbler mechanism being shown in unlocked position; Fig. 2is a verticalsection through the lock, ybeing taken' along the line H-II of Fig. 1, but with the face plate 4shovvn in place; Fig. 3 is a vievv similar toFig. 1, but

VWith the upper portion broken awayand the tumbler mechanism shown in locking position; Fig. 4 1s "a perspective 'view of the klatch barY and the,V tumbler latch, carried thereby ;v and Fig. 5 is a-.plan vievv "oi-, the tumbler bar.v i

Referring to the drawing, the casing 2v o the lockaccommodates the usual latch bary 4, provided with the latch piece 5 and With the tail pieces 6 or'rfengage'ment by the operating lugs 8 Secured 'to the knobshaft l0. The latch vbar 4 is also provided Witha'lug 12 adapted t0 be engaged by' a rocker yarm 14 pivoted at 16 to the casing 2. This arm supports a Weight 18, the tendency of which is to rock said arm in position to hold the' latch barnormally advanced :in order 'toj project the latch piece 5. t s

- At the rear. of the latch piece. 5 the ybar 4 is Offset, as shown at 20, the upper edgeptySpeciication of LettersPatent`v properly'Y constructed for theV purpose.

Serial'N0.'8S2,078.

which offset portionis recessed to provide vertical armr 0I" saidv hook against a lug or boss` 28 formed upon the latch bar. For limiting the movement oi" the tumbler bar 1n one direction it is provided with a shoulder 30 adapted'to abut' against the offset portion 20, While movement of said bar in the 'opposite direction is stopped by' a shoulder 32 :formed on vthe casing 2, at which point the bar becomes locked against sliding movement on the hook, the latter entering a recess 34 inthe under edge of the bar24.

The locking engagement of the tumbler bar 24 with the hook 26 is insured by the dropping of the bar `under the influence of not only its own Weight, but also the action of an angnlarly formed tumbler latch 36 Which bears upon the top edge of said bar 4G adapted to engage either side of a lugv 42 formed on the upper edge of the tumbler bar,}according as' the latter is in locking or operative, or in unlocking or inoperative position.

" The llower edges of the tumbler bar and latch y36 are suitably formed-'for engagementr and operation by a key (not shown) In Fig. 1, the parts are 'shown with the tumbler Patented Dec. 2.1, 1915.'v

mechanism unlocked, and the latch bar free tobe reciprocated by Vmeans of the knob shaft 10. ln this position the tumbler 'bar is advanced with its shoulder BOagainst the offsety portion 2O of the latch bar and so held by the detent 40 dropping in tothe left of the lug 42. In orde'rvto ylock the tumbler mechanism, the key is inserted and the keybit'lifts the tumbler latch 36 Without vatl'ect- .ing the 'tumbler' bar until the bit has reached the shoulder at the left side of thev notch 44 in the tumbler bar, by which time the detent is disengaged from the lug 42, and the keybit, bv bearing against said shoulder koijtllr notch il, throwsA Ythe barl 241th the :left

against 'the slioulderl,whereupon vthe barn drops with'it'snotch in engagementwith' the hook 26 and the det'cnt VLl()A -t'alls in .toy

l the right of the luf; d2. Vilnftlfiisposition of 4the parte, the ,latch bar can no longer.' be

moved tothe left 'to' unlock thek door, and the A hook 26S-notch 3i,engagementlandrthe lock-:

ing of the lupgl with the detent l0 afford a Idouble security against;anymossiblefchance'f of itfhe unlocking of .'-the' Stumbler mechanism' Without -thezuse of the proper key.

'lin vthe unlocking of :the `tumbler;-meehaf nisin,the -lev being" turned in lthe -opposite direction, the key-.bit `first engages ,and flitts l.the latch 3 6 toyrelease Vthe detent from11u52;Y

i2, yandat the saine time raises-fthe ba'rjQ sufficiently to vreinove Vit romqengageinent' Withthe hook 26, by which timevtheibitllias reached "itheshoulder at 'the right of the notch 1li/l, and further turning o'ff'the hey throws Lthe bar back .to original position; ItWLill thusbe seen that pickingsoff -sthe-look fact thatvthe tumbler bar must be Vreleased not lonly from the hook but also from the, tumbler latch, anduto accoinplish'fthis two] yindependent movements .are necessary be? causeof 'tlierelative movement required be-v tween the tumbler lbar vand its latch in ordery to free' the bar from the-detent, and Which could not'wellfbez-eifected the means ordinaril-y-employ'ed in lock-tampering.

,y `When the parts are 1in the lposition `illustrated in lFigi. l, it will also be observed thatthe tumbler latch 36 ail'ordsan .effective means v for ,preventing any accidental 4loclring of the tumbler mechanism in case the Vdoor should be suddenly .slalnmed'shujtl f For olollgthe parts Withintliecasing 2,

Y I provide the usual face-platel,asfshown pensive device foicarrying out the obie'cts inFigzQ. Y Y Y Y* .From the -foregoing Vit Will beapparent that l'have providedga ver)7 simple anddnexf oi inv invention, and While I'have illustrated and described what now` appears :tofimefto be .theprferrd `forro of theosam, I `Wish t0. be?

understood as reserving the rgh-ttQz-all Changes,end-modifications Whcllmav fairly fallwithin the ,spirit 'and scope ofthe-apT nendedlclaiins.

ln a door lock, 1a ca-Sina; 'a' latch Ahat withinthe easing, e .ttunbler bar :carried said latch bar and adapted Whenill opera-` tive position ,tol `engage a xedpoint onl the casing forflockng the 'latch bar, said bars being constructed and arranged to lock gtogether when said,tlnnblery baris inoperative PQStOH, and 1 2L. tumbler latehpiveted to the latch -fbar for l ,.C;1s-ir1.g said tumbler Lkbi1* .in said-no.Sitoa. i

2 lll e @0111." leek, a casing, a latch bar' fgaging and 'locking said' eithervoiI said positions. Y f

5. yIn -a door lockfthecombination'et a latch t bar, a tumbler bar iiiiovable into inop; Y

within Said easing, @tumbler im" affita by tive position to 'engage a fixed point 'on said said latch bari andA ,adaptedl Whenpfin opera-- 'casing for 'locking'the latch-bar, said bars Y being constructed and arranged 'tofl'Ck toget her when said'tuinbler bar 'is in operative position, and a tumbler latch pivotedfto the latchbar for-,lockingsaid tuiiibl'erfbar 'in 3."111 a door lock, fthe combination, of a 1 saidv position, -said tumblerl latch beingl also V- adapted to lock said tumbler bar in impera,-

ltive position. Y

latch bar and movablelinto inoperative posi'- tion'orlntooperative position toflocli said latch bar, pivoted means carried' Vb vsa'id latch :ba-r for locking the tumbler gloafrin either of said, positions, and vertically Inova-ble Weight for preventing "accidental upward Vor `unlocking movement Jof said pivoted means. f

Y 4; "i111 a door locl'the combination of laY latcli'bar, atumbler'bar carried by saidlatchv j-bar :andinovable into inoperative position or into operativ-exposition toffloclr said latch bar, and ypivotejdlatch' carried by latch bar-and provided 'with a` detent lfor 'en-VV erative position or Vinto roperative position to tumbler barf in lock said latch bar, ?mea-ns carried by said Y Veither 'of said y'positions,-la`nd\a yieldiiigil'Tyt de-L accident al vrupvv ard movement ltherejot'.

6.".In a dom' 10C/k? the fcoinbinatlnrgbf lam-1 ibm@ tumbler bef'mmblefina lint-tf verative-position orinto operatic@ pgitito latch bar` `for' flockingf-the tumblerbaffi-I1;Y A

pressed arin pivotedtojthecasingvothe Y lock and resting onsaidmeanstofpfevent Y interlock When Vsaid "latch bar" is locked, and

pivoted means acting automatically to llock-k` Y said tumbler bar in inoperative positionand to -suppleinentally lock lit .in operative posi-v tion.

. affdoorlockpa casingfa latch ,v Within the casing', tumbler? bar islidingLl-.y

carried by 'said .latch :bar and i adaptedlin .operative positionv to 'abut eagainstpa :fixed point on Vthe casing -Io'rlocking-Ls' v bar slidinglyvcarried by 'saidi'latch `barand i adapted When-in operative position'` tofabu" againstga fixed point on athekcasing for l'o'cleY ingisaid latohfibar, means Wherebyisa'idbar's,

ist

are interlocked When said latch bar is locked, and a key-operated tumbler latch adapted to latch pivoted to the latch bar and said tumbler bar inoperative position, the unlatching Vof the tumbler, barv taking place by a relative movement between it and said latch independently ofthe movement Whereby said tumbler bar is unlocked from the latch bar.

9. In a door lock, the combination of a latch bar, a tumbler bar movable into inopk. erative position or into operative position to lock said latch bar, a pivoted latch carried by said latch bar and adapted to engage and lock said tumbler bar in either of said posi- 1'5 LOUISv F. BON ALY.

Witnesses:

CLOVIS PAYEUR, G. Y. THORPE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

' Washington, D. C. 

